Just added this perennial plant to my collection. Anyone with a success story to share on care of this plant?

Have you looked at the entry in the database? There is a bit of care information posted there.
Yellow Chincherinchee (Ornithogalum dubium)
It's certainly pretty!

I grew them in my yard in Zone almost 9. Colder than that, I think they are houseplants. They enthusiastically reseeded themselves and filled up the whole garden.

I grow mine in a container with a well draining soil. It blooms during Spring, and it has bloom stalks and buds forming now as well. After bloom time, I cut the bloom stalk and allow the leaves to continue on till it wilts on its own. This way it gets to return to the bulbs energy for next Spring. It is totally done for by summer, so I just set it aside. It will start to show the new leaves here by late Fall. Typically I would try to put some new soil and some compost , but last year I was away, and did not get to do it, but it still came back nicely. It does need as much full sun you can give once the leaves starts to form, watered well but in good intervals so it does not get too soggy.

I can keep it here outdoors even in winter since our winters are milder.

Great information.....

Great information..... think I am going to leave in house year around.

It really grows better outdoors, but if indoors is your option, try to position it in a good west facing or south facing window so you get as much sun as you can, if not you may have to use grow lights.

Thanks for wonderful tip....the label said it is a perennial.

Hey, my DH just brought home one of these! (Hope bumping this thread doesn't cause the OP to get a bunch of emails.) Since he bought it at the grocery store, it's in full bloom and the soil is soaking wet. Would it be ok to repot now into some drier medium and perhaps a slightly larger pot? I hate to disturb the bulbs, but I also don't want it to rot!

I don't disturb mine while it is in bud/blooming stage. You can just try and control your watering. If media is still wet delay watering. Use bamboo skewer, if it comes out wet, delay.

Just checked the soil again; it's pretty damp, but maybe will dry out. I put a paper towel under the pot to see if that will soak up some to speed it drying out a bit. Guess I'll just keep an eye on it. Any tips for signs of distress?

Distress to me would be buds blasting, but other than after blooming, it just slowly fizzles out here as our temps go very hot and dry.

"blasting?"

buds that fail to bloom, just dries up

Ok. I'm just going to let it take its chances and see if the soil dries relatively quickly. I may try setting it outdoors in a sheltered area if we get some warm breezy days. It's not quite as soggy as I initially thought. Sigh, my sweetie is forever dragging home cute little plants that don't stand a chance of surviving here.

Well, my little plant has survived and appears to be about done blooming. Should I repot it now? Or would it be better to cut off the spent blooms now and repot a bit later? Do I need to wait till all the foliage has died back (assuming that it does)? No idea how to deal with this type of plant! It looks like there are actually about 4 bulbs in the pot.

Yes, you can just cut off the dried off bloomstalk, just continue watering the plant, while the leaves still green. It will continue nourishing the bulb for the next season. Eventually it will dry off on its own, and do its summer rest, then trim off the dried leaves. Keep it dry, it will return again in Fall. It may also make new bulblets below soil line as nourishment from the leaves continues before the leaves dries off, so by the time Fall comes around, you may have more.

Should I wait till it's resting to put it in a larger pot? The one it's in is really small.

Just do it towards Fall. Keep it warm and dry after the foliage has died. It needs its summer rest period.

Thank you for all the advice!